反应详情

200 mg of Boc-Sta-Ala-Sta-OMe are treated with 3.5 ml of TFA at 0° C. The mixture is stirred for 20 min at RT. Then, after concentration in vacuo, the oily residued is extracted by successively adding and concentrating anhydrous ether. This gives a white solid.

1. concentrationThen, after concentration in vacuo
2. extractionthe oily residued is extracted
3. additionby successively adding
4. concentrationconcentrating anhydrous ether
5. customThis gives a white solid